Properties of the Number -18247

Eighteen Thousand Two Hundred Forty-Seven

Basics

Value: -18248 → -18247 → -18246

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 71 × 257

Divisors: 1, 71, 257, 18247

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

7925 Try Today's Challenge

Representations

Binary: -100011101000111

Octal: -43507

Duodecimal: -A687

Hexadecimal: -4747

Square: 332953009

Square Root: 135.08145690656434

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: No

Perfect Number: No

Special

Kaprekar Constant: No

Munchausen Constant: No

Armstrong Number: No

Kaprekar Number: No

Catalan Number: No

Vampire Number: No

Taxicab Number: No

Super Prime: No

Friedman Number: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

Number of integer partitions of n where some part is the difference of two consecutive parts. A364467

Number of partitions p of n such that (number of even numbers in p) < (number of odd numbers in p). A241636

a(n) = n + (n+1)² + (n+2)³ + (n+3)⁴ + (n+4)⁵. A27622

Numbers n such that h(n) = 3 h(n-1) where h(n) is the length of the sequence {n, f(n), f(f(n)), ...., 1} in the Collatz (or 3x + 1) problem. (The earliest "1" is meant.) A78420

a(n) = a(n-1) + 3·a(n-2) -2·a(n-3) - 2·a(n-4), where a(0) = 0, a(1) = -1, a(2) = 0, a(3) = 1. A295735

Number of nX3 0..1 arrays with every element unequal to 0, 1, 5 or 8 king-move adjacent elements, with upper left element zero. A304265

Concerning the popular MMORPG "Runescape" by JAGeX corporation, this sequence gives the number of experience points needed for a given level in a skill. A111078

Number of permutations of 1..n containing the relative rank sequence { 136245 } at any spacing. A159103